Must flammable safety cabinets be grounded?

Some flammable safety cabinets are equipped with grounding connections. However, NFPA 30 – Flammable and Combustible Liquids – does not require the cabinet to be grounded. The connection is merely provided by the manufacturer. Grounding and bonding becomes a concern during the transfer of flammable liquids. Please read my article on flammable and combustible liquids for additional information on proper handling practices: